(Hong Kong)
Product Summary
The BQ26231PWR is a low-cost battery coulomb counter. It works with an intelligent host controller, providing state-of-charge information for rechargeable Li-Ion, Li-Pol, or NiMH batteries. The BQ26231PWR measures the voltage drop across a low-value series sense resistor between the negative terminal of the battery and the battery pack ground contact. By using the accumulated counts in the charge, discharge, and self-discharge registers, an intelligent host controller can determine battery state-of-charge information. The BQ26231PWR features 13 bytes of registers, which contain the capacity monitoring and status information.
Parametrics
BQ26231PWR absolute maximum ratings: (1)Supply voltage (VCC with respect to VSS): –0.3 V to 6 V; (2)Input voltage: HDQ (all with respect to VSS): –0.3 V to 6 V; (3)RBI, SR1, and SR2 (with respect to VSS): VSS – 0.3 V to VCC + 3 V; (4)Operating free-air temperature range, TA: –20℃ to 70℃; (5)Storage temperature range, Tstg: –65℃ to 150℃; (6)Lead temperature (soldering, 10 s): 300℃.
Features
BQ26231PWR features: (1)Multifunction High-Accuracy Coulometric Charge and Discharge Counter; (2)Ideal for Portable Applications With Nonremovable Rechargeable Battery Pack; (3)Resolves Signals Less Than 12.5 μV; (4)Internal Offset Calibration Improves Accuracy; (5)128 Bytes of General-Purpose RAM; (6)Internal Temperature Sensor Eliminates the Need for an External Thermistor; (7)High-Accuracy Internal Timebase Eliminates External Crystal Oscillator; (8)Low Power Consumption; (9)Single-Wire HDQ Serial Interface; (10)Packaging: 8-Lead TSSOP.
Diagrams
| Image | Part No | Mfg | Description |  |
Pricing (USD) |
Quantity | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 |
 BQ26231PWR |
Texas Instruments |
Battery Management Cost-Efficient Coulomb Counter |
Data Sheet |
|
|
||||||||
|
BQ26231PWRG4 |
Texas Instruments |
Battery Management Cost-Efficient Coulomb Counter |
Data Sheet |
|
|
||||||||
